What codecs do you use on a regular basis? This includes your ripping / encoding preferences, but also the format(s) of music that you regularly buy online (iTunes, Amazon, Bandcamp, etc…). As such, multiple choices are allowed.

Was thinking of either using mp3 for mobile playback or switch to wavpack in separate tracks/hybrid mode (= copy the lossy one to my clip+) but that involves re-encoding my whole archive and wavpack is really slow compared to FLACCL so I'm holding off on that. Kinda hoping someone might write an openCL version of the wavpack encoder, if it's even possible/feasible.

The reason I keep using FLAC on my clip+ is because from what I understood from the battery tests on the rockbox site is that the runtime is longer when using FLAC than using MP3. That and I don't keep all my music on my mobile player, just the songs I'm currently listening to, so space is not really an issue.